Clamp for holding plowshares.



B. R. WYANT. CLAMP FOR HOLDING PLOWSHAEBS.

APPLICATION FILED AUG. 4, 1913.

1 ,08731 56. Patented Feb. '17, 1914.

COLUMBIA PLANDGRAPH co.,wAsmNaTON, D. C.

BRUCE R. WYANT, or MAsKELL, NEBRASKA.

CLAMP FOR HOLDING PLOWSHARES.

Specification of Letters 1?:itent.

Patented Feb. 17, 1914.

Application filed August 4, 1913. Serial N 0. 782,869.

To all whom it may concern Be it known that I, BRUCE R. WYAn'r, a citizen of the United States of America, and resident of Maskell, county of Dixon, and 5 State of Nebraska, have invented certain new and useful Improvements in Clamps for Holding Plowshares, of which the following is a specification.

This invention relates to certain new and useful improvements in clamps for holding.

plow shares while being welded or sharpened and is designed for use either in makthe heel of the lay instead of on the point and fastens with two set screws. I provide a handle preferably of cork or other analogous material which prevents burning of the hand and the lay can be held in the fire at any position. The clamp holds the plow lay firmly while working in the fire and on the anvil and the clamp takes the place of tongs heretofore employed for this purpose.

Other objects and advantages of the invention will hereinafter appear and the novel features thereof will be particularly pointed out in the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the numerals of reference marked thereon, form a part of this specification, and in which Figure 1 is a perspective view of my improved clampin operation. Fig. 2 is an elevation looking at the rear of Fig. 1 with the mold board wing in vertical sect-ion. Fig. 3 is a cross section on the line 33 of Fig. 2, looking in the direction of the arrows.

Like numerals of reference indicate like parts throughout the different views.

Referring to the drawings, 1 designates the main plate or bar which may be of any desired'length and provided with a handle 2 of cork or analogous material to prevent burning of the hands. At the end opposite My improved clamp is designed to go on the handle this main plate or bar is formed with an integral transverse portion 8 extendlng upon opposite sides of the median line of the plate and at each end formed with an integral clamp member 4 disposed at substantially right angles to the portion 3, as seen clearly in Fig. 1. One of these members 4 is provided with a screw-threaded opening to receive the set screw 5, for a purpose soon to be described.

6 is a plate or bar having an offset portion '7 forming a shoulder 8 upon the one side and another shoulder 9 upon the opposite side, as clearly seen in Fig. 1. From this offset portion extends the clamp memher 10, seen in dotted lines in Fig. 1, which is of such length as to extend a considerable distance beyond the lateral member 3.

Slidable upon the overlapped portions of the members 1 and 6 is a rectangular sleeve 11 provided with a set screw or the like I I 12 extending laterally therethrough and adapted to bear against the member 6, as seen best in Fig. 3, to clamp the parts 1 and 6 in their relatively adjusted positions.

The device may be of any desired size and it is evident that'the distance between the members H may be varied to suit different widths of land side wings.

The mode of use will be apparent. Asis well known, forged plow shares are usually constructed of two pieces of metal welded together into the shape shown in Fig. 1. The landside-wing 13 is at approximately a right angle to the mold board wing 14 and the forward end of the mold board wing is bent under, as at 15, to receive the pointed end of the triangular landside-wing. hen in this position, it is necessary to bind the two portions of the plow share together, so that they will not get displaced while they are being welded. The present device is for this purpose and is illustrated in its operative position in Fig. 1. The lower member 4 is engaged under the lower edge of the landside-wing and the upper member 4 is engaged above the mold board wing at the heel. The set screw 5 is then screwed up so as to firmly bind the parts in position. The member 6 is moved lengthwise on the memher 1 until the extension 10 has a firm long bearing on the side of the landside-wing opposite the member 3, the shoulder 8 pressing firmly against the rear edge of the landsidewing, as seen clearly in Fig. 1. The sleeve 11 is then moved up, as indicated in Fig. 1,

without departing from the spirit of the invention or sacrificing any of its advantages.

What is claimed as new is 1. In a clamp for holding plow shares, a main plate having a transverse extension with clamping members, a member slidable with relation to the main plate and extend ed upon both sides of the said extension to have a long hearing at one end on the plow share opposite said extension, a member sliding upon overlapped portions of said main plate and slidable member, and means carried by the sliding member for clamping the parts together.

2. A clamp for holding plow shares, comprising a main plate having a transverse extension with right-angled holding members, a set screw held in one of said members and a sliding member on said plate having an offset portion, and extended upon both sides of the said extension to have a long hearing at one end on the plow share opposite said extension and a sleeve slidable upon overlapped portions o-f the main plate and offset member and provided with a set screw.

3. A clamp for holding plow shares, comprising a main plate having integral transverse extension upon opposite sides thereof terminating in right-angled clamping portions, a'plate having a portion parallel with the main plate and an offset portion forming a shoulder, and an extension to engage the landside-wing opposite and beyond said extension, and a sleeve slidable upon overlapped portions of the two plates and having means for clamping the same together.

4. The herein described clamp for holding plow shares, consisting of a main plate with a non-heat-conducting handle at one end, said plate being formed at the other end with an integral transverse member extending upon opposite sides of the median line thereof, the opposite ends of said transverse member terminating in right-angled clamping members to engage the lower edge of the landside-wing and the heel of the mold board wing, a set screw in one of said members to engage the mold board wing, a second plate having a portion parallel with the main plate and an offset portion forming a shoulder and an extension to engage the side of the landside-wing opposite the lateral extension of the main plate, said shoulder engageable with the rear edge of the landside-wing, and a sleeve slidable upon the overlapped portions of the two plates and provided with a set screw engageable with one plate to force it against the other plate.

Signed by me at Maskell, Nebr., this 30th day of July, 1913.

BRUCE R. VVYANT.

Witnesses:

W. H. GEE, N. C. NELSON.

topics of this patent may be obtained for five cents each, by addressing the Commissioner of Iatenta. Washington, D. G. 

